1. S.R. Bickham, Optical Fiber Communication Conference. Exposition and National Fiber Optic Engineers Conference, paper OWA5 (2010)
2. M. Bigot-Astruc et al., Proceedings of European Conference on Optical Communication, paper Mo.4.B.1 (2008)
3. A. Carena, G. Bosco, V. Curri, Y. Jiang, P. Poggiolini, F. Forghieri, Opt. Express 22, 16335 (2014)
4. D. Chang, P. Perrier, H. Fevrier, S. Makovejs, C. Towery, X. Jia, L. Deng, B. Li, Opt. Express 23, 25028 (2015)
5. Cisco VNI, White Paper (2017)